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Im having problems with my LT1. It runs fine until it gets to normal crusing temp around 205 then when idling at a light it starts to miss badly (almost wanting to die) when i accelerate the problem goes away to an extent but still misses. No trouble codes . Any ideas?
The up to operating temp is the key peice of information. The opti should crap out throughout temp ranges, not just at 205+. Check the coil wire when it is up to temp, it can get pretty bendy when it's hot, might be arcing.
Does it only mess up at 205+? or do you notice it starting to happen at lower temps too (trying to figure out if the problem is occuring near the switch to closed loop). The more info we have, the more we can help you (well, the more others can help you, I only know a couple of random things).
-Dave